<template>
  <footer class="footer">
    <span class="todo-count">剩余<strong>{{ this.list.length }}</strong></span>
    <ul @click="changeSel" class="filters">
      <li>
        <a @click="isSel = 'all'" :class="{ selected: isSel === 'all' }" href="javascript:;" >全部</a>
      </li>
      <li>
        <a @click="isSel = 'no'" :class="{ selected: isSel === 'no' }"  href="javascript:;">未完成</a>
      </li>
      <li>
        <a @click="isSel = 'yes'" :class="{ selected: isSel === 'yes' }"  href="javascript:;" >已完成</a>
      </li>
    </ul>
    <button class="clear-completed" >清除已完成</button>
  </footer>
</template>

<script>
export default {
  props:['list'],
  data(){
return{
    isSel:'all'
}
  },
  methods:{
changeSel(){
    this.$emit('changeTask',this.isSel)
}
  },

}
</script>